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dc.contributor.authorTerrinha, Pedro-
dc.contributor.authorMatias, L.-
dc.contributor.authorVicente, J.-
dc.contributor.authorDuarte, João C.-
dc.contributor.authorLuis, Joaquim-
dc.contributor.authorPinheiro, L. M.-
dc.contributor.authorLourenço, N.-
dc.contributor.authorDíez Tagarró, Susana-
dc.contributor.authorRosas, Filipe-
dc.contributor.authorMagalhães, V.-
dc.contributor.authorValadares, V.-
dc.contributor.authorZitellini, Nevio-
dc.contributor.authorRoque, Cristina-
dc.contributor.authorMendes-Victor, L.-
dc.contributor.authorMATESPRO Team-
dc.date.accessioned2009-10-19T12:00:57Z-
dc.date.available2009-10-19T12:00:57Z-
dc.date.issued2009-12-15-
dc.identifier.citationMarine Geology 267(3-4): 156-174 (2009)en_US
dc.identifier.issn0025-3227-
dc.identifier.urihttp://hdl.handle.net/10261/17760-
dc.description19 pages, 18 figures, 1 tableen_US
dc.description.abstractThe Gulf of Cadiz, off SW Iberia and the NW Moroccan margin, straddles the cryptic plate boundary between Africa and Eurasia, a region where the orogenic Alpine compressive deformation in the continental collision zone passes laterally to the west to strike-slip deformation. A set of new multibeam bathymetry, multi-channel and single channel seismic data presented here image the main morphological features of tectonic origin of a significant part of the Gulf of Cadiz from the continental shelf to the abyssal plain. These morphotectonic features are shown to result from the reactivation of deeply rooted faults that changed their kinematics from the early Mesozoic rifting, through the Late Cretaceous-Paleogene collision, to Pliocene-Quaternary thrusting and wrenching. The old faults control deep incised, more than 100 km long canyons and valleys. Several effects of neotectonics on deep water seabed are shown. These include: i) the complex morphology caused by wrenching on the 230 km long WNW-ESE faults that produced en echelon folds on the sediments; ii) the formation of up to 5 km wide crescent shaped scours at roughly 4 km water depth by reactivation of thrusts; iii) 10 km long creep folds on the continental slope; and iv) the formation of landslides on active fault escarpments. The present day deformation is partitioned on NE-SW thrusts and WNW-ESE to W-E strike-slip faults and is propagating northwards on N-S trending thrusts along the West Iberia Margin from 35.5°N to 38°N, which should be considered for seismic hazarden_US
dc.description.sponsorshipThe work was sponsored by MATESPRO (PDCTM/P/MAR/15264/1999), EUROMARGINS SWIM (01-LEC-EMA09F), MVSEIS (01-LEC_EMA24F; PDCTM 72003/DIV/40018) and TOPOMED (TOPOEUROPE/0001/2007) projects. Instituto Scienze Marine (CNR) Bologna contribution 1587. JD and VV benefited from PhD grants from Fundação para a Ciência e a Tecnologia (SFRH/BD/31188/2006, SFRH/BD/17603/2004). We acknowledge the PARSIFAL Project MAR1998-1837-CE for the use of bathymetry data. We acknowledge the financial support from the ESF EuroMargins Program, contract n. 01-LEC-EMA09F and from EU Specific Programme "Integrating and Strengthening the European Research Area", Sub-Priority 1.1.6.3, "Global Change and Ecosystems", contract n. 037110 (NEAREST)en_US
dc.format.extent952681 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsopenAccessen_US
dc.subjectGulf of Cadizen_US
dc.subjectSouthwest Iberia Marginen_US
dc.subjectMultibeam bathymetryen_US
dc.subjectMorphotectonicsen_US
dc.subjectSeismotectonicsen_US
dc.subjectWrench tectonicsen_US
dc.subjectStrain partitioningen_US
dc.subjectMigration of deformationen_US
dc.titleMorphotectonics and Strain Partitioning at the Iberia-Africa plate boundary from multibeam and seismic reflection dataen_US
dc.typeartículoen_US
dc.identifier.doi10.1016/j.margeo.2009.09.012-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttps://doi.org/10.1016/j.margeo.2009.09.012en_US
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